JobMetrics.java 文件源码

public JobMetrics(Job job, String bytesReplicatedKey) {
  Builder<String, Long> builder = ImmutableMap.builder();
  if (job != null) {
    Counters counters;
    try {
      counters = job.getCounters();
    } catch (IOException e) {
      throw new CircusTrainException("Unable to get counters from job.", e);
    }
    if (counters != null) {
      for (CounterGroup group : counters) {
        for (Counter counter : group) {
          builder.put(DotJoiner.join(group.getName(), counter.getName()), counter.getValue());
        }
      }
    }
  }
  metrics = builder.build();
  Long bytesReplicatedValue = metrics.get(bytesReplicatedKey);
  if (bytesReplicatedValue != null) {
    bytesReplicated = bytesReplicatedValue;
  } else {
    bytesReplicated = 0L;
  }
}